There have been many adaptations of Sir Arthur Conan Doyle's Sherlock Holmes books over the years ranging from old comic strips to the films starring Robert Downey Jr. One fan-favorite version is the BBC series that starred Benedict Cumberbatch as Sherlock and Martin Freeman as Watson. Sherlock was created by Steven Moffat and Mark Gatiss and ran for four seasons between 2010 and 2017. If you've never seen the beloved series or are looking for a rewatch, you're in luck, because the show is heading to Hulu.